Ferrari North America
Technical Information

Date:
Bulletin #:
Campaign #:
Supersedes:
Section:

January 2020
2621
3

Model Type:

Model Year:
All
Subject:
Gearbox speed sensor replacement
This Technical Information Cancels and Replaces
the previous TIs 2153, 2328 and 2398.

Subject: Gearbox speed sensor replacement
The procedure for replacing the gearbox speed sensor on the DCT gearbox of the
aforementioned models is described herein. The part numbers of the kits necessary for this
procedure are indicated in the following table, organized by model. Note that these kits are
only applicable for vehicles with valid warranty coverage.
Models

Speed Sensor Kit Part No.

458 Italia
458 Spider
458 Speciale
458 Speciale A

70003275

California
FF
California T

70003853

F12berlinetta

70003276

F12 TDF
488 GTB
488 Spider
488 Pista

70003919

488 Pista Spider
F8 Tributo

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GTC4 Lusso
GTC4 Lusso T
812 Superfast

70004784

Portofino
Monza SP1/SP2

-

The Dealer must duly compile the “DCT Gearbox Pre-Diagnosis Form” on pages 62
to 64 of this document and attach it to a new ROL.

-

Replaced parts must be kept for at least 60 days, so that they may be returned if
requested or authorized for scrapping by SAT.

- IMPORTANT After completing the repair procedures, you are required to complete the “DCT Gearbox PreDiagnosis Form” on page 62 to 64 of this document, and attach it to a new ROL.

Tools and equipment necessary for replacement of speed sensor
The following tools and equipment are necessary to carry out the specified procedures:
•

Extractor cup for 7th gear wheel needle bearing cage Part No. 95978627 (AV 8627);

•

Extractor cup for 1st, 2nd and Reverse gear wheel needle bearing cage Part No.
95978628 (AV 8628);

•

Punch for installing 1st, 2nd and Reverse gear wheel needle bearing cage bush Part No.
95978630 (AV 8630);

•

Punch for 7th gear wheel needle bearing cage bush Part No. 95978816 (AV 8816);

•

Conical guide tip for installing synchronizer rod in oil seal Part No. 95978817
(AV 8817);

•

Cone for gear set housing assembly rods Part No. 95978820 (AV 8820);

•

Park Lock locking tool Part No. 95978823 (AV 8823);

•

Reverse shaft height measuring tool Part No. 95978824 (AV 8824).

2
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TI-2621

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whole or in part is not permitted without
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Ferrari North America
- IMPORTANT If not already in your possession, these tools must be ordered by you directly from our Spare
Parts Department in the quantities needed.

Removing the gearbox speed sensor

- IMPORTANT During disassembly, we recommend stacking the gears/rings/synchronizers removed from
each shaft in the original working sequence and to keep the specific shims and circlips
separate. This will help facilitate reassembly and help ensure that the components are
reinstalled in the correct order, and prevent the risk of swapping or inverting shims or other
components.

 Remove the complete E-Diff pipe.
 Remove the SAP (as indicated in Technical Information 2619).
 Remove the rear cover.

Fig. 1

 Move the indicated control rods into the
neutral position, with all of the rods
protruding relative to the plate by the
same distance – Fig. 1.

3
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TI-2621

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 Remove the 7th speed primary gear (1) from the odd gear primary shaft – Fig. 2.
Fig. 2

 Using the punch AV 8630, tap the shim of the 1st speed gear (2) off the R-4th-3rd-1st
speed secondary shaft to help facilitate removal of the relative seeger ring – Fig. 3.
Fig. 3
AV 8630

4
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TI-2621

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 Using the punch AV 8816, tap the shim of the 7th speed gear (3) off the 2nd-6th-5th7th speed secondary shaft to help facilitate removal of the relative seeger ring – Fig. 4.

AV 8816

 Remove the retainer seeger ring (4) on the
1st speed gear from the secondary shaft –
Fig. 5.

Fig. 5

4

5
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TI-2621

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 Remove the retainer seeger ring (5) on the 7th
speed gear from the secondary shaft – Fig. 6.

Fig. 6

5

 Fit the cap AV 8613 on the shaft then fit the
extractor tool USAG 454N/3 on the 1st speed
gear (2) – Fig. 7.

Fig. 7

AV
8613

 Release the 1st speed gear (2) – Fig. 7.
2

 Remove the extractor tool with the relative
striker shim.
 Retrieve the shim (6) and the 1st speed
gear (2) – Fig. 8.

Fig. 8

2

6

6
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TI-2621

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 Retrieve the roller bearing cage (7) and the
rings (8) – Fig. 9.

Fig. 9

8

7
 Fit the roller bearing cage and rings on the
1st speed gear (2) – Fig. 10.

Fig. 10

2

 Fit the cap AV 8613 on the shaft then fit the
extractor tool USAG 454N/3 on the 7th
speed gear (3) – Fig. 11.

AV 8613

 Release the 7th speed gear (3) – Fig. 11.
3

Fig. 11

7
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TI-2621

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whole or in part is not permitted without
authorization from the publisher. Printed in USA.

Ferrari North America
 Remove the extractor tool with the
relative striker shim.
 Retrieve the shim (9) and the 7th speed
gear (3) – Fig. 12.

9

3

Fig. 12

 Retrieve the roller bearing cage (10)
and the rings (11) – Fig. 13.

11

10
Fig. 13

Fig. 14

 Fit the roller bearing cage and rings on
the 7th speed gear (3) – Fig. 14.

3
8
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TI-2621

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 The next step consists of removing the
bushes (12) on the two secondary shafts
– Fig. 15.

12

12
Fig. 15

 To remove the bush (12) on the 2nd-6th5th-7th speed secondary shaft, the end of
the extractor tool AV 8627 must be
installed in the recess of the shim (13) as
shown below – Fig. 16.

Fig. 16

13

12

 Loosen the indicated screws in order to
insert the edge of the extractor tool AV
8627 in the recess on the shim (13) – Fig.
17.

AV 8627

13

 Tighten the indicated screws by equal
amounts, then check that the extractor tool
AV 8627 is locked securely in place – Fig.
17.

Fig. 17
9
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TI-2621

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whole or in part is not permitted without
authorization from the publisher. Printed in USA.

Ferrari North America
 Fit the cap AV 8613 on the shaft then fit the
extractor tool USAG 454N/3 on tool AV 8627
– Fig. 18.

AV 8613

AV 8627

 Detach the bush (12) on the 2nd-6th-5th-7th
gear secondary shaft and remove from the
secondary shaft – Fig. 18.
12

 Loosen the screws fastening the tool by just
enough to retrieve the shim (13) and the bush
(12) – Fig. 19.

Fig. 18
AV 8627

13
12
Fig. 19

 Turn the gearbox into a horizontal position –
Fig. 20.

Fig. 20

 Wrap the entire 1st-3rd gear synchronizer and
the relative fork with clean paper or cover with
an unused/clean bag – Fig. 20.

10
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 Use a plastic mallet to push the control
rod (14) of the 1st-3rd gear synchronizer
towards the rear of the gearbox – Fig. 21.

Fig. 21

14

 Working carefully, ease the 1st-3rd gear
synchronizer and the relative rod (14) out
by a few centimeters – Fig. 22.

Fig. 22

14

Note: Watch for parts of the assembly
falling out of the paper wrapping,
and retrieve any parts which may
drop out.

 Remove the paper wrapping, taking care
not to drop any parts – Fig. 23.

Fig. 23

11
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TI-2621

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 Use a magnet to retrieve the indicated
balls still on the synchronizer hub –
Fig. 24.

 Remove the synchronizer complete
with control rod (14) – Fig. 25.

Fig. 24

14

 Use a magnet to retrieve the indicated
springs still on the synchronizer hub –
Fig. 26.

Fig. 25

Fig. 26

12
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TI-2621

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Fig. 27

 Retrieve the blocks (15) still on the
synchronizer hub – Fig. 27.

15

Fig. 28

 The following parts must be retrieved
during disassembly of the synchronizer, as
shown in the photo aside (Fig. 28)::
•

1 synchronizer ring;

•

3 blocks;

•

3 balls;

•

3 springs.

Fig. 29